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While it is over engineering, your approach seems to be the learning intent of the problem. All 4 steps are outputs from prior problems. It should be a re-create with minor modifications exercise, hence the 'easy'. The wording of the problem, on the other hand...
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While it is over engineering, your approach seems to be the learning intent of the problem. All 4 steps are outputs from prior problems. It should be a re-create with minor modifications exercise, hence the 'easy'. The wording of the problem, on the other hand...